99这里只有精品免费,精品成a人亚洲精品无码,人妻无码喷潮精品视频,人人爽人人爽人人片av免费

                                                                         1、支板底模，填充內(nèi)模放線，肋間打孔
                                                                         2、鋪設下鐵及水電管線
                                                                         3、用鐵絲綁扎填充內(nèi)模兩端，并安裝下墊塊鋪放填充內(nèi)模即開槽處
                                                                         4、鋪設上鐵，并放鋼筋馬鐙
                                                                         5、安放填充內(nèi)模上墊塊
                                                                         6、穿整體抗浮鐵絲
                                                                         7、隱蔽驗收，澆注混凝土